A

Marine Marine Grass — Salt-Water

July 12th 9° 1 leaf (white Thread) (cleaned), with salt-water—

1 opposite leaf (not marked) not cleaned with salt-water — bloom very perfect, so that very difficult to make drop remain on leaf — nice young leaf. —

About 4° (& I believe earlier I found the salted leaf with edges closely rolled in so as to be shut closely & all water hidden so could put on no more.

July 13 9° leaf still closed — no effect from spherical globule on opposite side.

(15th The leaf with white thread now nearly dead; I think it must have been on point of death & this caused it to roll inwards; for they behave in this manner.)

N.B Leaves rigid with sharp curved upturned spine on margin stands at very high angle to horizon, beautifully adapted to cast off spray. Leave do not sleep.

(B

Triticum repens. var.?

Marine grass — Greenhouse

July 13th 8° 50' after cleaning blade with sponge & water at 85-90°. — put on salt-water on 2 with black wool

1 with white wool distilled water— on 15th in at 4° P.m 12° not shut evening forgot & put on salt-water & afterwards continued salt-water The leaf was then quite green

(15th none of these leaves shut)

(July 16th — 8° A.m The 2 leaves with black wool, now look yellowish-green. —) (All the killed leaves become closely involuted.)

(July 18th 8° trace of yellowish on leaf which was first treated with pure water.

(July 19th Grass now varying several young leaves from same curve with bloom-covered leaves now have no bloom!) but their surfaces are silvery & repel water — Contrast in appearance very great. — some young leaves have partial bloom.

The non-bloom leaves not nearly so rigid & apparently tried to grow longer. —

(July 20' 11° p put several young leaves of both kinds & not cleaned in sea-water stalks & all — Try again & keep stalks out of water.)

July 26th 4° 50 P.m. not in the least injured; I suppose being completely immersed no evaporation & no (over)

[Bv]

absorption: I now 4° 50' (26th) cleaned with sponge & water about 80 middle portion of blue & green blade on same culm & immersed.

(This experiment was in my study)

July 29th 8° The leaves now look rather yellowish & injured

― 30th 8° — All the leaves are now yellowish-green & injured. The injury commences at apex & not at the cut off end. I can see no difference between the hoary & green leaves.

The cleaned leaf which was submerged on the 26th is as much injured as the uncleaned which was submerged on the 20th. — It is very curious that leaves cut off & submerged are not injured nearly so much as leaves with drops put on them, whilst growing— can it be action of the sun...

Aug 1'. I can see no difference between the 2 sets — all yellowish & decayed. —

C

Triticum marine var.

July 26th 11° A. m. sponged 3 blue blades & 3 green blades & pinned on sticks & put on drop of salt water. N.B that nearest leaves were too near pin-holes when first drop put on.

At 3° ie after 4 hours 1 green leaf was strongly involuted & I suppose injured.

July 29th several leaves seem yellower & injured

― 30th 9° — 4 of the leaves badly injured — 2 not so as yet, but the bloom did not seem to have been well cleaned. I cannot perceive any difference in the degree to which the green & hoary leaves suffer.

Aug. 1' The 2 leaves not injured are now yellowish-brown, where salt-water lay. —

Aug 1' I syringed the whole plant twice, & drops certainly adhere more to the green than to the glaucous leaves; partly due to the former not being so upright & rigid, & thus this latter var. wd be less [illeg] with salt-water. —